Magazine for holding blanks



E. E. WINKLEY.

MAGAZINE FOR HOLDING BLANKS.

APPUCATION FILED MAR. 4. I920.

1,366,549. Patented Jan. 25, 1921.

94 iii-82,

I i l 1 UNITED STATES PATENT OFFICE.

ERAST US E. WINKLEY, OF LYNN, MASSACHUSETTS, ASSIGN OR T0 UNITED SHOE MACHINERY CORPORATION, OF PATEESON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MAGAZINE FOR HOLDING BLANKS.

Application filed March 4; 1920. Serial No. 363,278.

To all whom it may concem:

Be it known that I, ERAs'rUs -WINKLEY,

a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Magazines I01 Holding Blanks; and I do hereby declare the following to be a full, clear, and Gliitig? description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to magazlnes for holding blanks in stack formation, 111 which the stack is advanced to bring the blanks successively to a predetermined po sition in the magazine from which they may be automatically removed. More particularly the invention relates to heel-11ft magazines of the type disclosed in the ap plicants copending application, SerialjNo. 252,769, filed Sept. '5, 1918, and assigned to the United Shoe Machinery Corporation.

The object of the present inventlon is to providecertain improvements in the construction and mode of operation of magazines of the above described general character for the purpose of increasing their eff.- ciency and reliability. V

To this end the invention contemplates the provision, in a magazine for holding blanks in stack formation, havlng means for advancing the stack toward one end of the magazine, of a stop member which 1s normally positioned tolimit the advance of the stack and adapted to be withdrawn from.

operative position to permit the removal of the endmost blank, and normally moperative clamping means, which is rendered operative by the withdrawal of the stop memher, for preventing movement of the stack in the magazine.

The features of the present invention Wlll be best understood from a description of the preferred embodiment thereof, illustrated in the accompanying drawings, in wh1ch:

Figure 1 is a verticalsectional view of a heel-lift magazine embodied 1n an automatic heel-building machine, showing the mechanism associated with the magazine for feeding the lifts successively into the field of operations of a picker by means which they are transferred to the assembling station of the machine; Fig. 2 is a detail sec- Specification of Letters Patent.

to, and moved to one side Patented Jan. 25, 1921.

tional view taken on the line 2-2 and Fig. 3 is a detail sectional View taken on the line 33 of Fig. 1.

As shown in the drawings, the lifts are stacked in a vertical column within a magazine having side walls consisting of two upright members 4 and 6, which rise from a supporting plate 8. The upright member 4 is V-shaped incross-section and serves to position the rear or curved edges of the lifts contained within the magazine. The lower end of the V-shaped member 4 is provided with a laterally extending base 10 having a plurality of elongated slots 12 (Fig. 2)

through which suitable clamping devices 14 project for the purpose of adjustably clamping the member 4 in position on the plate 8.

The upright member 6 is channel-shaped, having a flat vertical surface opposed to the V-shaped member 4, for engaging and alining the breast edges of the lifts, and a base 16 that is suitably secured to the supporting plate 8. The stack of lifts rests upon a vertically movable follower plate 18'.

The stack of lift-sis fed upwardly in the yielding feed-movesur ace,.which is coated with paste, into engagement with the uppermost lift therein and then raised, with the lift. adhering thereto transfer the lift to the assembling station of the heel building machine. The stop-member 20 is adapted to be withdrawn from its operative position above the stack of lifts after each feed movement of the stack to permit the descent of the picker 22 and the removal thereby of a lift from the stack.

Inorder to provide for the upward feed ing of the stack of lifts in the magazine the follower plate 18 is carried at the top of a follower rod 24 which is movable vertically through suitable openings in the supporting plate 8 and in the base 10 of the upright magazine member 4. To the lower end of the follower rod 24 is secured a guide of Fig.1;

26 having oppositely extending arms which engage and slide upon suitably supported stationary guide-rods 28.

The'means for actuating the follower rod 24, to effect the feeding of the lifts, comprises a feed-pawl 30 which engages racl: teeth 32 on the follower rod. The feedpawl is carried by a feed-arm 34 that is pivoted on a stud 36 projecting from a bracket 38 that is secured to the underside of the supporting plate 8. A spring 10, one end of whichis secured toithefeed-pawl and the opposite end to the feed-arm, holds the pawl in operative engagement with the rack teeth on the follower rod. T he feet-anniia is actuated to raise and lower the feed-pawl by means of a lever 42 which is pivoted alongside thefeed-arm on the stud 86. The arm or" the lever 42 winch extends toward the feed-pawl is yieldingly connected with the feed-ar1n 34: by a spring l i. Thespring 44 is coiled around a rod 46 which prQ e'cts downwardly from the lever 12 and extends the lower end of the rod fend of'the lever 42 carries a cam-roll 52 lifts in the magazine.

through an opening in a lug on the side of the feed-arm 3e beneath the adjacent arm of the lever, the spring la being interposed between thelug 1S and pair of nuts 50 on The opposite which is held by a spring 53 against the under face of the cam 5 1 which is secured to V a vertical shaft 56. The shaft 56 s condriven and is adapted to make one until its movement is arrested by the stop-'' member 20. Return movement of the follower is prevented by a spring-actuated holding-pawl 58 which is pivoted on the bracket 38. At the completion of each feed movement the lever l2 moves in the opposite direction under the influence of the spring '53, engaging the lug 18 on the feed-arm 3 1 andretracting the feed-pawl to normal position. The feed-pawl 30 and the holdingpawl 58 areseverally provided with down- .ward extensions 59, by means of which they maybe manually disengaged from the rack teeth of the follower rod to permit the follower plate to be lowered when it is. desired to replenish the supply of lifts in the magazine.

' After each upward movement of the stack of lifts the stop-member 20 is withdrawn from the top of the magazine to permit thev removal of the uppermost lift by the picker 22. In order that the stop-member 20 may bewithdrawn for the above purpose it is se- At each revolution of the.

the lever 42 inthe .di

cured to a rock-shaft 60 which is journaled in the side-webs of the channel-shaped upright 6. The means for operating the rockshaftGO comprises an arm 62 which is secured thereto and connected by a link 6% with an upwardly extending arm of a bellcrank lever 66 that is fulcrumed upon a fixed pivot 68. The other arm of the bellcrank lever 66 is provided with 'a pin 70 which enters a groove 7 2 in a sleeve that is mounted to slide on the vertical shaft 56. A similar grooveTG inthe sleeve 74; is en tered by a pin 78 projecting froma cam lever'80 which is fulcrumed upon fixed pivot 82. The cam lever 80 carries a camroll 84 which rides in a groove in a cam 86 that is secured to a cam-shaft 88 of the heelbuilding machine. The cam-shaft 88 is con tinuuously driven and is adapted to make a single revolution for each cycle of operations of the machine, and the cam 86 is so designed that the stop-member is withdrawn and returned once at each revolution of the cam. a

inasmuch as the lifts are fed yieldingly against the stop-member 20v the stock is more or less compressed betweenvthe stopmember and the follower plate 18, at' each feed movement 'lVhen the stop-member is withdrawnfrom-operative position it is desirable to preventupwar'd movement of the stack due to the expansion of the somewhat compressed lifts, in order. to maintain the lifts under control and prevent the'possibility of the uppermost lifts becoming laterallydisplaced as theyrise beyond the upright magazine'member at. @Tothis end a movable clamping member 90 is mounted in an opening near the top of the transverse web of the upright magazine member 6, the

lower end of the clamping member being pivoted upon a rod 92 that is supported by the side webs of said magazinemember. T he clamping member 90 is actuated so as to clamp the lifts near the top ofthe stack between the inner faces of the upright magazine member 1- and a clamp-j aw'94 of yieldmaterial which iscarried at the upper end of the clamping member 90.

The means for actuating the clamping member 90 comprises a cam 96 that is piv-V,

oted on the rock-shaft 60 and is adapted'to engage a projection 98 .on the clamping member. The cam 96 is provided with an operating arm 100 which is normally held in engagement with a lug 102 on the side of the stop-member 20 by meansof a spring 104. The springlOis coiled about a rod 106 which projects downwardly through an opening in the arm 100 and extends through an opening in the lug 102 the spring being confined between said lug and a pair of nuts 108 atrthe lower end of the-rod 106. With this construction the movementof the stopmember 20, as it is withdrawn from operative position, is transmitted through the spring 104; to the arm 100 so as to rock the cam 96 yieldingly in a direction to force its cam face against the projection 98. The yielding rocking movement of the cam 96 presses the clamp-j aw 94 against the edges of the adjacent lifts thus firmly clamping them against upward movement in the magazine. The clamp-jaw 94 falls short of extending to the top of the stack by a sufficient distance to insure that the uppermost lift, at least, will not be clamped but will be free to be removed by the picker. When the stopmember is returned to operative position the arm 100 is engaged by the lug 102 and positively rocked thereby in the opposite direction from that in which it was yieldingly rocked, thus releasing the clamping member 90 and leaving the lifts free to be ad- 7 vanced upwardly by the feed mechanism.

The employment of a stop-member for limiting the extent of upward movement of the stack of lifts in the magazine, and the provision of feed mechanism which acts, between successive operations of the picker, to yieldingly advance the uppermost lift into engagement with the stop-member, insures the feeding of said lift to a predetermined position within the field of operations of the picker 22 before the picker is depressed toward the top of the magazine. It will be apparent that by means of the clamping member 90, the uppermost lift in the stack is prevented from being displaced,

: upon the withdrawal of the stop-member,

and is maintained in the proper position to be seized by the picker as the latter operates, immediately after the clamping op eration, to remove a lift from the magazine.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction is not essential except so far as specified in the claims and may be i changed or modified without-departing from the broader features of the invention.

The invention having been described, what is claimed is 1. The combination with a magazine for holding blanks in stack formation, of

means for advancing the stack toward one end of the magazine, a stop member normally positioned to limit the advance of the stack and adapted to be withdrawn from operative position to permit the removal of the endmost blank, and means rendered operative by the withdrawal of the stop member for preventing movement of the stack in the magazine.

2. The combination with a magazine for holding blanks in stack formation, of means for advancing the stack toward one end of the magazine, a stop member normally positioned to limit the advance of the stack and adapted to be withdrawn from operative position to permit the removal of the endmost blank, and a normally inoperative clamp member operated by the withdrawal of the stop member to engage the blanks near the leading end of the stack to prevent movement of the endmost lift.

3. The combination with a magazine for holding blanks in stacked formation, of means for advancing the stack through the magazine, a pivoted stop member normally projecting into the path of movement of the stack for limiting its advance and adapted to be swung aside to permit the removal of the endmost blank, a clamp member for holding the stack against movement in the magazine, and acam actuated by the withdrawal of the stop member for operating the clamp member.

4:. The combination with a magazine for holding blanks in stacked formation, of means for advancing the stack through the magazine, a pivoted stop member normally projecting into the path of movement of the stack for limiting its advance and adapted to be swung aside to permit the removal of the endmost blank, a clamp member for holding the stack against movement in the magazine, and means actuated yieldingly by the withdrawal of the stop member for operating the clamp member.

5. The combination with a magazine for holding blanks in stacked formation, of means for advancing the stack toward one end of the magazine, a stop memberalternately moved into position to limit the advance of the stack and withdrawn to permit the removal of the endmost blank from the magazine, and a clamp member actuated yieldingly by the withdrawal of the stop member to hold the stack against movement in the magazine and positively by the return of the stop member to operative position to release the clamping member.

6. The combination with a magazine for holding blanks in stacked formation, of in termittently actuated feed mechanism for advancing the stack toward one end of the magazine, a stop member moved into position prior to each feed movement to limit the advance of the stack and withdrawn at the completion of the feed movement to permit the removal of the endmost blank from the magazine, and a clamp member operated by the withdrawal of the stop member to hold the stack against expansion in the magazine.

7. The combination with a magazine having side walls for holding blanks in stacked formation, of feed mechanism for advancing the stack through the magazine, a stop member pivoted near one end of the magazine and adapted to be alternately swung inwardly to engage the outer face of the endmost blank in the stack to limit the movement of said blank and to be swung outwardly to 7 permit the removal of said blank 1"'romt1 1e" zine, mid "means aetuated the eutward magazine, a clamp member pivotally mountmovement of the stop member for moving edm an epenlng 1n ene of the slde WitHSfldthe clamp mto operetive posltion andby the jueent the chseharge end of the magazlne for inward movement of the stop member fer 10 engaging the edges of a plurality of blanks releasing the elamp.

near the leading end of the stack to prevent V I the advance of the stack through the mega- V ERASTUSE. WVINKLEY. 

